A 2.6 $\mu$W Monolithic CMOS Photoplethysmographic (PPG) Sensor Operating With 2 $\mu$W LED Power for Continuous Health Monitoring

被引：26

作者：

Caizzone, Antonino ^{[1
]}

Boukhayma, Assim ^{[1
]}

Enz, Christian ^{[1
]}

机构：

[1] EPFL, Integrated Circuits Lab, CH-2000 Neuchatel, Switzerland

来源：

IEEE TRANSACTIONS ON BIOMEDICAL CIRCUITS AND SYSTEMS | 2019年 / 13卷 / 06期

关键词：

Light emitting diodes; Signal to noise ratio; Electric potential; Power demand; Monitoring; Blood; Capacitance; Array; CIS; CMOS; LED; low-power; low-noise; Photodetector; PPD; PPG; wearable; PULSE OXIMETER;

D O I：

10.1109/TBCAS.2019.2944393

中图分类号：

R318 [生物医学工程];

学科分类号：

0831 ;

摘要：

Photoplethysmography (PPG) enables wearable vitals monitoring. Nevertheless, it is still limited by the few mA of the LEDs driving current. We present a PPG sensor integrating an array of dedicated pinned-photodiodes (PPD) with a full readout chain integrated in a 0.18 $\mu$m CMOS Image Sensor (CIS) process. The sensor features a total input referred noise of 0.68 e-rms per PPD, independently of the input light, and achieves a 4.6 $\mu$W total power consumption, including the 2 $\mu$W LED power, at 1.38 bpm heart rate average error.

引用

页码：1243 / 1253

页数：11

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